Part Number: 45-231-200, Includes: Wall mount bracket, 2 extensions, Crossbar and 2 sliding LCD mounts, VESA mounting screws, Mounting Standards: VESA FDMI, MIS-D, 75/100, C, Exterior: Durable, easy-to-clean powder-coated painted steel exterior, Mounting Options: Mounts to sturdy vertical surfaces. Where applicable, attach to wood stud, Warranty: 05 years The interlocking design of the 200 Series provides telescoping adjustment. Easily extend or retract your monitors through a 23" (58 cm) range of motion.